Adjusting stop for sawmill carriage head blocks



. Sept. 1, 1931. c. A, CARBAU H 1,821,421

ADJUSTING STOP FOR SAWMILL-CARRIAGE HEAD BLOCKS Filed Nov. 15, 1930 3 Sheets-Sheet 1 amnion Sept. 1, 1931. c. A. CARBAUGH 1,821,421

ADJUSTING STOP FOR SAWMILL CARRIAGE HEAD BLOCKS Filed Nov. 15. 1950 a Sheets-Sheet 2 W 1931- c. ,A. CARBAUGH 1,821,421

ADJUSTING STOP FOR SAWMILL CARRIAGE'HEAD BLOCKS Filed Nov. 15, 1930 3 Sheets-Sheet 3 U gwomtom 50 The invention has Patented Sept. 1, 1931 warren stares CONRAD A. CARBAUGI-I, OF DICKEYS MOUNTAIN, PENN SYLVAN1IA ADJUSTING STOP FOR SAWMILL CARRIAGEHEADBLOCKS Application filed November 15, 1930. Serial No. 495,980.

This invention relates to improvements in the saw mill head block adjusting stop which constitutes the subject-matter of my co-pending application, filed August 6, 1929. serially numbered 383,915 and allowed June 13, 1930, Patent Number, 1,784,175, granted December 9, 1930, and which comprises a bracket secured to one of the saw mill carriage supporting beams, a guide carried by the bracket in close relation to the outer side of such beam, a stop bar mounted in the guide for vertical rectilinear movement into and out of position for contact by one of the head blocks, and a manually operable lever for the stop bar having its power end located outwardly of the other saw mill earriage supporting beam and having its load end connected to the stop bar.

The present invention has for one of its objects to provide a head block adjusting stop of the character stated which'shall embody a bracket adapted to permit'the adjusting stop to be used in connection with those saw mill carriages having power receder rails and in connection with those saw mill carriages not equipped with such rails.

The invention has for a further object to of movement of the .knee receding meansmounted on the carriage and adapted to be operated by said rail as to render it impossible for such means to contact with the stop bar.

The invention has for a further object to.

provide a bracket of the character stated which shall be simple, strong and durable, and which may be easily and quickly secured to the mentioned supporting beam fora saw mill carriage. V

for a further object to provide novel means for connecting the load end of the lever to the stop bar.

lVith the foregoingand other objects in view, the nature of which will appear as the descriptionproceeds, the invention'consists in the construction, combination and arrangement of parts hereinafter fullydee scribed and claimed, and illustrated in the accompanying drawings, wherein a- Figure 1 is a transverse section through a B0 saw mill carriage and thesupporting beams of the same and showing my head block stop in applied position. p 1 l Figure 2 is a view in front elevation of the bracket and stop bar ofthe head block adjusting stop. v

Figure 3 is a detail view of one of the links of the means for connecting the load end of the lever to the stop bar.

Figure 1 is a view inside elevation of a'*70 modified form of the head block adjusting stop.

Figure 5 is a view in front elevation of the head block adjusting stop shown in Figure 1. V v

Figure 6 is a view in side elevationofa further modified form of the head block adjusting stop. 1 c

Figure 7 is a view in front elevation of the bracket and stop bar'of thehead block ad justing stop shown in Figure 6.

Figure 8 is a view in side elevation of a still further modified form of the head block adjusting stop, and t igure 9 is a View in front elevation of a fragmentary portion of the head block adjusting stop shown in Figure 8.

Referring in detail to the drawings, 10 designates a saw mill carriage, and 11 one of the head blocks of the carriage. 12 designates one of the axles of the carriage 10, and 13 and let designate the wheels of the carriage mounted upon this axle. The wheel 14 is shown-as a flanged wheel engaging a flanged rail 15, while the wheel 13 is shown as a plain faced wheel engaging a flat rail 16. The rails 15 and 16 are mounted upon beamsl'? and 17a. Mounted upon the head block llis a knee 19 which, after the log has been sawed up, together with the other by pinions and racks, not shown.

knee of the carriage is receded or moved back to such a position as to permit another log to be placed upon the head blocks. The means for receding the knees comp ises a rail 19a located outwardly of and parallel to the beam 17a, a bracket 19?) carried by the carriage 10, and a roller 190 journaled on the bracket and supported thereby for movement in apath above and parallel to the receder rail. The roller 190 is connected to the guide shaft 18 by gears, not shown, and the guide shaft is connected to the knees After the log has been cut up, the power receder rail 19a is moved upwardly into contact with the roller 19c, and this is done through the medium of the lever, not shown. The consequent rotation of the roller 190 and shaft 18, results in the knees of the carriage being receded or moved back to such position as to permit another log to be placed upon the. head blocks.

After the knees have been receded, the lever is released, resulting in the downward movement of the power receder rail 19c and the throwing out of operation of the receding means. As the saw mill carriage and the knee receding means are of well-known construction, a further illustration and description thereof are deemed unnecessary.

A supporting bar 20 which is located below and extends transversely of the beamsl? and 17a, is terminally secured to the beams, as at 20a. The bar 20 is provided with a longitudinal series of openings 21, and a hanger 22 is secured to the bar by means of I a bolt 22a passing through one o1 said openings. A pedal lever 23 which is located below the beams 17 and 17a and the bar 20, and which extends transversely of the beams, is pivoted intermediate its ends to the lower end of the hanger 22 by a bolt 24. The lever 23 is provided with longitudinal series 0%? openings 25, and the bolt 24 passes through one of these openings. The lever 23 is provided at its power end with an upwardly extending arm 26 which is located outwardly of the beam 17 and which is provided at its upper end with a treadle 27. The load end of the lever 23 extends outwardly beyond the beam 17a, and is upwardly bent, as at 28.

A bracket 29 which is secured to the beam 170, comprises an angle bar 30 bolted, as at. 31, to the lower and outer sides of this beam, a horizontal arm 32 extending outwardly from the lower side of the angle bar to a point beyond the power receder rail 19a, and a vertical arm 33 extending upwardly from the outer end of the arm 32 to a point above the roller 19s. The arm 33 is provided in its upper end with an upwardly and inwardly inclined opening 34, and is provided at its outer side and below the opening with a boss 35 which is provied with an upwardly and inwardly inclined opening 36 registering with the opening 34:. The apertured upper end of the arm 33 and the apertured boss 36 constitute a guide for a stop bar 37. The stop bar 37 is mounted in the openings 34 and 36 for rectilinear movement in an upwardly and inwardly inclined plane, to the end that its upper end will, when it is raised into active postion, contact with the head block 11 a point below and inwardly of the guide shaft 18. The bracket 29 clears the power receder rail 19m, bracket 19b and roller 190, and supports thestop bar 37 in such postion that it will also clear these parts of the'knee recoding means and may be moved into operative position and out of such position without contacting with such parts.

The bracket 29 is provided with cars 38 which extend downwardly from the arm 32 in alinement with the arm 33 and which are3 provided with a vertical series of openings 39. A lever 40 is pivoted at one end to and between the ears 37 by a pin ll which passes through a horizontal alined pair of the openings 38. wardly and outwardly from its pivot 41 and its upper end is connected to the lower end i the stop bar 37 by a link 42. The upturned load end. 28 of the lever 23 is connected to an intermediate point of the levee,

l0 by a link The lever l0 is provided with a longitudinal series of openings 44;, and the pivot-45 of the link 43 passes through one or these openings. The openings 330i the ears 38 permit the vertical.:..

shifting of the pivot 41 of the lever 40, and the'openings 44 or" the lever 40 permit the point or connection of the link 43 with the lever to be adjusted tows d and away from the pivot41, to the end that the extent of the movement of the stop bar 37 as the result of the depression of the lever 23 may be varied, so as to adapt the head block adjusting stop for application to saw mill carriages of different size. secured to the stop bar 37, and is adapted to contact with the under side of the boss 35 to limit the movement of the stop bar in the direction of the head block 11. he

linlrs 42 and d3 may be of one piece or two;

piece construction, as shown in Figures 3 and 5, respectively.

In the modified form of the head block adjusting stop shown in Figures l and 5,

th bracket 29a comprises an angle bar 30o- A lug 46 is..,

The lever extends lip-3P provided at its lower end with downwardly and outwardly inclined ears 38a'to and between which the lower end of the'iever i is pivoted, as at 50. The" lever inclines upwardly and outwardly from its pivot,

and is connected at its upper end'to and between 51 extending downwardly and inwardly from the lower end of the stop bar 37. The load end of the pedallever 23a is straight, and is connected by a takes to an intermediate point of the lever 40. The other parts of this head block adjustingstop are similar to the corresponding parts of the one shown in Figures 1' andQ, and are designated by similar reference characters. The head block adjusting stop shown in Figures 6 and 7 differs fromthe one shown in Fi ures 4 and merely in that the load end the pedal lever 23a isconnected di- 'rec'tly to the lower. endof the stop bar 3'4.

To permit this direct connection, theload end portion of the lever is inclined up wardly and outwardly, as shown at53, the upper end of such angular portion being connected by a pivot 54 to the lower end of the stop bar 27. The other parts of this headbloek adjusting stop are similar to the corresponding parts of the one shown in Figures 4 and 5 and are designated by corresponding reference characters.

The head block adjusting stops shown in Figures 1 to 7 are adapted for mill carriages having power receder rails, and

the head block ad'ustin stop snown in Figures 8 and 9 is adapted for saw mill carriages not provided with powerreceder rails. Thls head block Zl-CijllSlllll stop differs but slightly from those shown in Figures 6 and 7 the difference residing merely in omitting the angle bar av of the bracket 2941: so as to permit the guide 48to be arranged in close proximity to the beam 17a. The other parts of this head block ad usting stop are desi 'nated by the reference characters employed in connection with 5 the corresponding parts of the head block adjusting stop shown in Figures 6 and 7.

When the lever 23 is depressed, the stop bar 37 will be shifted upwardly and inwardl to osition its u J'aer end in the oath of movement of the head lock 11, with the result that the movement of the head block is arrested, and the distance between it and the other head block of the saw mill carriage is reduced. If the stop bar 37 he reved or allowed to move downwardly and outwardly, as it will under its own weight, the head block 11 will then move with the saw mill carriage. it it is desired to increase the distance between the two head blocks, the stop bar 37 is then shifted outwardly until after the head block 11 has passed the same, so as to arrange it in the path of the other head block.

The openings 21 and 25 permit the hanger -the'stroke. v a a i From the foregoing descript on, taken 1n;

22't0 be shifted nearer to or further from the treadleend of the lever'23 to thus change the leverage to shorten the length of connection with the accompanying-drawings, it will be'apparent that I have pro: vided novel, simple and highly efficient head block adjusting stops, that the head block ad usting stops may be manufactured and;

sold at comparatively low cost and easily and quickly applied, that threeof the head block ad-justing stopsare adapted for apvlieation to sawmill carriages provided with power receder rails, and that there-;

maining head block adjusting stop is adapted for application to saw mill carriages not prov1ded-w1th power receder ralls;

Vi hile I have illustrated a certain particular arrangement of parts, I do not wishto 1. A head block adjusting stop, comprisi a horizontal bracket arm adapted to be *Ab 7 u secured m an outwardly extended pos1t1ou to one of the track supportin 'sawun'ill carriage, a vertical bracket arm extendedupwardly from the outer'end of the" horizontal bracket arm, a stop'bar, a guide carried by the vertical bracket arm and supportingthe stop bar 'for sliding movement in an upwardly and inwardly in- 'clined -plane,-a'lever pivoted to the supporting beams, and means connecting the lever to the lowerendof the 'stopbar,

2. Aheadbloekadjusting stop, comprising a' horizontal bracket arm-adapted to be secured in an outwardly extended position to' one ofthetrack supporting beams fora -sa'w; m'ill carriage, a vertical bracket arm extended-upwardly from theou-ter end of the hori-zontalbracket arm, a stop bar,a guide carr ed by the vertical bracket arm and supporting the stop bar for sliding movement in an upwardly and inwardly inclined plane, a lever pivoted between its:

ends to the supporting beams and having 'an'angularload end and means connecting said end of the lever to the lower end of the stop bar.

- 3. Aheadbloek adjusting stop, compris-* ing a horizontal brac'ketarm adapted to be beams for a i secured in an outwardly extended position toon'e'o'f the track supporting beams for a saw mill carriage, a vertical bracket arm extended upwardly rrom the outer end of the horizontal bracket arm, a stop bar, a guide carried by the vertical bracket arm and supporting the stop bar for sliding movement in an upwardly andinwardly inclmed plane, and a lever pivoted between its ends to the supported beams and having an angular load end pivoted directly to the lower end ofthe stop bar.

4. A head block adjusting stop, comprising a horizontal bracket arm adapted to be secured in an outwardly extended posi-' tion to one ofthe track supporting beams for a saw mill carriage, a vertical bracket arm extended upwardly from the outer end of the horizontal bracket arm, a stop bar, a guide carried by the vertical bracket arm and supporting the stop bar for sliding movement in an upwardly and inwardly inclined plane, a lever pivoted to one of the bracket arms and to the lower end of the stop bar, a second lever pivoted between its ends to the supporting beams, and a link connected to the load end of said second lever and to said first lever at a point between the ends of the latter.

5. A head block adjusting stop, comprising a horizontal bracket arm adapted to be secured in an outwardly extended position to one vof the track supporting beams for a saw mill carriage, a vertical bracket arm extended upwardly from the outer end of the horizontal bracket arm, a stop bar, a guide carried by the vertical bracket arm and supporting the stop bar for sliding movement in an upwardly and inwardly inclined'plane, a lever pivoted at one end to one of the bracket arms, a link connecting the other end of the lever to the lower end of the stop bar, a second lever pivoted between its ends to the supporting bars, and a link connected to the load end of said second lever and to an intermediate point of said first lever;

6. A head block adjusting stop, comprisinga horizontal bracket'arm' adapted to be secured in an outwardly extendedposition to one of the track supporting beams for a saw mill carriage, a vertical bracket arm extended upwardly from the outer end of the horizontal bracket arm, a stop bar, a guidercarried by the vertical bracket arm and supporting the stop bar for sliding movement in an upwardly and inwardly in- I clined plane, a lever havlng an ad ustable connection at one end with one of the bracket arms, a link connected to the other end of the lever and to the lower end of the stop bar, a second lever pivoted between its ends I to the supporting beams, a link connected to the load end of said second lever and adjustably connected to said first lever.

7. A head block adjusting stop, comprising a horizontal bracket arm adapted to be secured in an outwardly extended position to one of the track supporting beams for a sawmill carriage, a vertical bracket arm extended upwardly from the outer end of the horizontal bracket arm, a stop bar, a guide carried by the vertical bracket arm, and supporting the stop bar for sliding movement in an upwardly and inwardly inclined plane, and means for operating the stop bar.

8. A head block adjusting stop, comprising a horizontal bracket arm adapted to be secured in an outwardly extended position to one of the track supporting beams for a saw mill carriage, a vertical bracket arm extended upwardly from the outer end of the horizontal bracket arm and provided in its upper end with an upwardly and inwardly inclined opening, a boss on the outer end of the vertical bracket arm and provided with an upwardly and inwardly inclined opening registering with'said first opening, a stop" verted U-form in cross section secured to the outer side of the vertical bracket arm and having an upwardly and inwardly inclined top wall, a stop bar slidably supported by the guide, and means for operating the stop bar.

10. A head block adjusting stop, comprising an angle bar adapted to be secured to one of the track supporting beams for a saw mill carriage, a horizontal bracket arm extended outwardly from the bar, a vertical bracket arm extended upwardly from the outer end of the horizontal arm, a stop bar slidably supported on the horizontal bracket arm, and means for operating the stop bar.

In testimony whereof I hereunto aflix my signature.

CONRAD A. CARBAUGH. 

